“For Tim Cook to have such strong feelings about the book, it must
have touched a nerve,” Kane said. “Even I was surprised by my
conclusions, so I understand the sentiment. I’m happy to speak
with him or anyone at Apple in public or private. My hope in
writing this book was to be thought-provoking and to start a
conversation which I’m glad it has.”

Somehow I doubt she was surprised by her conclusions. As for why Cook saw fit to comment, sure, it could be because her book hit painfully close to home. Or, it could be that it truly is nonsense. Reviews thus far clearly suggest the latter.